MODEL RELEASED. Blood transfusion. Patient undergoing a blood transfusion in a Ugandan hospital ward. A bag of donated blood (top left) is being transfused into the patient via a tube that connects to an intravenous catheter in their wrist. Blood transfusions are carried out to replace blood in people with blood disorders, or those who have lost blood through trauma or surgery. Photographed at St. Mary's Hospital in Lacor, Gulu, Uganda.